enhance(frontend): improve signup complete ui (#10876)

* enhance(frontend): improve signup complete ui

* relocation

* tweak

* Update _boot_.ts

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Co-authored-by: syuilo <Syuilotan@yahoo.co.jp>

packages/frontend/src/_boot_.ts

@@ -5,7 +5,9 @@ import '@/style.scss';
 import { mainBoot } from './boot/main-boot';
 import { subBoot } from './boot/sub-boot';
 
-if (['/share', '/auth', '/miauth'].includes(location.pathname)) {
+const subBootPaths = ['/share', '/auth', '/miauth', '/signup-complete'];
+
+if (subBootPaths.some(i => location.pathname === i || location.pathname.startsWith(i + '/'))) {
 	subBoot();
 } else {
 	mainBoot();